Postmark Usage Statistics

Websites using Postmark

Download Lead List

Get a list of 51,054 websites using Postmark which includes location information, hosting data, contact details, 29,820 currently live websites and 21,234 sites that used this technology previously.

Top 10k
Top 100k
Top 1m

Quantcast Top 10k
166 of 10,000


Quantcast Top 100k
963 of 100,000


BuiltWith Top Million
3,715 of 969,294


Entire Internet
39,776 of 374,866,433


Log in or Sign up for Free to see Postmark history back another year to March 2016. View plans for historical access back to August 2012.

Email delivery for web apps.

Categories: Email Hosting Providers · Transactional Email

Technology Won
DMARC 3,603
GoDaddy Email 1,118

This table shows where Postmark are gaining/losing customers from within the technologies in the same sub-categories of Transactional Email. View the full report for more information regarding countries, states and where Postmark's customers come from.

Physical locations of businesses using Postmark.


Top 10,000 Sites
Top 100,000 Sites
Top 1 Million Sites

This chart shows the amount of websites within the top 10k, 100k, and 1 million sites groups that are categorized as being in the specific vertical.

Get access to data on 51,054 websites that have used Postmark. We know of 29,820 live websites using Postmark and an additional 21,234 sites that used Postmark historically

View Website List

Get a list of websites using Postmark

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Transactional Email


48,550 websites


470,665 websites


69,330 websites

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Browse groups of technologies that we track.